// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ipc/brokerable_attachment.h"

#include "crypto/random.h"

namespace IPC {

// static
BrokerableAttachment::AttachmentId
BrokerableAttachment::AttachmentId::CreateIdWithRandomNonce()
{
    AttachmentId id;
    // In order to prevent mutually untrusted processes from stealing resources
    // from one another, the nonce must be secret. This generates a 128-bit,
    // cryptographicaly-strong random number.
    crypto::RandBytes(id.nonce, BrokerableAttachment::kNonceSize);
    return id;
}

} // namespace IPC
